The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
ATLANTICA SUSTAINABLE INFR P SHS G0751N103 1,371 37,425 SH   SOLE 0 37,425 0 0
SWITCHBACK II CORPORATION UNIT G8633T123 3,817 374,999 SH   SOLE 0 374,999 0 0
TORTOISE ACQUISITION CORP II COM CL A G89554102 8,494 775,674 SH   SOLE 0 775,674 0 0
TORTOISE ACQUISITION CORP II UNIT G89554110 4,803 406,312 SH   SOLE 0 406,312 0 0
ALTUS MIDSTREAM CO COM NEW CL A 02215L209 1,597 30,443 SH   SOLE 0 30,443 0 0
ANTERO MIDSTREAM CORP COM 03676B102 13,730 1,520,508 SH   SOLE 0 1,520,508 0 0
BP MIDSTREAM PARTNERS LP UNIT LTD PTNR 0556EL109 181 14,300 SH   SOLE 0 14,300 0 0
BLOOM ENERGY CORP COM CL A 093712107 7,603 281,060 SH   SOLE 0 281,060 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 700 16,846 SH   SOLE 0 16,846 0 0
CHENIERE ENERGY INC COM NEW 16411R208 197,749 2,746,134 SH   SOLE 0 2,746,134 0 0
CHEVRON CORP NEW COM 166764100 682 6,506 SH   SOLE 0 6,506 0 0
CLIMATE REAL IMPACT SLUTINS UNIT 187171202 3,097 309,692 SH   SOLE 0 309,692 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 30,626 1,189,992 SH   SOLE 0 1,189,992 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 32,666 1,508,148 SH   SOLE 0 1,508,148 0 0
DECARBONIZATION PLUS ACQU II UNIT 242794204 5,406 537,420 SH   SOLE 0 537,420 0 0
ECP ENVIRONMENTAL GW OPT COR UNIT 26829T209 9,001 895,492 SH   SOLE 0 895,492 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 16,341 2,521,832 SH   SOLE 0 2,521,832 0 0
ENBRIDGE INC COM 29250N105 127,776 3,486,289 SH   SOLE 0 3,486,289 0 0
ENERGY TRANSFER LP COM UT LTD PTN 29273V100 131,435 17,113,907 SH   SOLE 0 17,113,907 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 4,671 1,088,741 SH   SOLE 0 1,088,741 0 0
ENPHASE ENERGY INC COM 29355A107 27,071 166,938 SH   SOLE 0 166,938 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 183,339 8,326,014 SH   SOLE 0 8,326,014 0 0
ENVIVA PARTNERS LP COM UNIT 29414J107 7,091 146,720 SH   SOLE 0 146,720 0 0
EQUITRANS MIDSTREAM CORP COM 294600101 38,963 4,774,890 SH   SOLE 0 4,774,890 0 0
EXXON MOBIL CORP COM 30231G102 663 11,878 SH   SOLE 0 11,878 0 0
FIRST RESERVE SUSTAINABLE GW UNIT 336169206 5,546 553,000 SH   SOLE 0 553,000 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 36,700 3,929,373 SH   SOLE 0 3,929,373 0 0
HENNESSY CAPITAL INVS CORP V UNIT 42589T206 1,298 128,251 SH   SOLE 0 128,251 0 0
HESS MIDSTREAM LP CL A SHS 428103105 2,566 114,445 SH   SOLE 0 114,445 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 1,120 58,587 SH   SOLE 0 58,587 0 0
KINDER MORGAN INC DEL COM 49456B101 77,015 4,625,523 SH   SOLE 0 4,625,523 0 0
MPLX LP COM UNIT REP LTD 55336V100 128,902 5,029,337 SH   SOLE 0 5,029,337 0 0
MACQUARIE INFRASTRUCTURE COR COM 55608B105 528 16,606 SH   SOLE 0 16,606 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 38,170 880,307 SH   SOLE 0 880,307 0 0
MARATHON PETE CORP COM 56585A102 815 15,235 SH   SOLE 0 15,235 0 0
NEXTERA ENERGY INC COM 65339F101 1,363 18,030 SH   SOLE 0 18,030 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 55,769 765,219 SH   SOLE 0 765,219 0 0
NOBLE MIDSTREAM PARTNERS LP COM UNIT REPST 65506L105 554 38,174 SH   SOLE 0 38,174 0 0
NORTHERN GENESIS ACQUISITION UNIT 66516U200 860 84,008 SH   SOLE 0 84,008 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 16,066 940,063 SH   SOLE 0 940,063 0 0
ONEOK INC NEW COM 682680103 116,989 2,309,303 SH   SOLE 0 2,309,303 0 0
PEMBINA PIPELINE CORP COM 706327103 116,276 3,990,730 SH   SOLE 0 3,990,730 0 0
PHILLIPS 66 COM 718546104 2,648 32,477 SH   SOLE 0 32,477 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 15,038 474,846 SH   SOLE 0 474,846 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 72,873 8,008,017 SH   SOLE 0 8,008,017 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 40,345 4,292,014 SH   SOLE 0 4,292,014 0 0
PLUG POWER INC COM NEW 72919P202 2,521 70,336 SH   SOLE 0 70,336 0 0
POWER DIGITAL INFRA ACQ CO UNIT 739190205 8,075 800,000 SH   SOLE 0 800,000 0 0
RATTLER MIDSTREAM LP COM UNITS 75419T103 24,099 2,267,107 SH   SOLE 0 2,267,107 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 21,225 1,591,080 SH   SOLE 0 1,591,080 0 0
SHOALS TECHNOLOGIES GROUP IN CL A 82489W107 2,384 68,531 SH   SOLE 0 68,531 0 0
SOLAREDGE TECHNOLOGIES INC COM 83417M104 11,127 38,712 SH   SOLE 0 38,712 0 0
SPARTAN ACQUISITION CORP III UNIT 84677R205 5,982 596,427 SH   SOLE 0 596,427 0 0
STAR PEAK CORP II UNIT 855179206 3,401 325,000 SH   SOLE 0 325,000 0 0
SUNNOVA ENERGY INTL INC. COM 86745K104 7,408 181,478 SH   SOLE 0 181,478 0 0
SUNRUN INC COM 86771W105 9,077 150,084 SH   SOLE 0 150,084 0 0
TPI COMPOSITES INC COM 87266J104 4,722 83,682 SH   SOLE 0 83,682 0 0
TARGA RES CORP COM 87612G101 105,598 3,325,935 SH   SOLE 0 3,325,935 0 0
TC ENERGY CORP COM 87807B107 119,586 2,592,579 SH   SOLE 0 2,592,579 0 0
VALERO ENERGY CORP COM 91913Y100 2,756 38,492 SH   SOLE 0 38,492 0 0
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 43,741 2,352,914 SH   SOLE 0 2,352,914 0 0
WILLIAMS COS INC COM 969457100 129,411 5,462,703 SH   SOLE 0 5,462,703 0 0